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BU97930KV-E2 Datasheet(PDF) 9 Page - Rohm

Part # BU97930KV-E2
Description  Multifunction Segment Drivers
Download  24 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BU97930KV-E2 Datasheet(HTML) 9 Page - Rohm

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Technical Note
9/23
BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
www.rohm.com
2010.04 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Integrated Regulator Characteristics (Ta=-30 ~ 75°C, VDD=1.8V ~ 3.6V, VLCD=3.3V ~ 5.5V, VSS=0)
(BU9798KV)
Parameter
Symbol
Limits
Unit
Conditions
MIN
TYP
MAX
Output voltage 1
Vreg1
4.35
4.5
4.65
V
4.5V setting (VLCD=5.5V, Ta=-30 ~ 75°C)
Output voltage 2
Vreg2
4.42
4.5
4.58
V
4.5V setting (VLCD=5.5V, Ta=25°C)
Load regulation
(**)
delta Vreg
-
-
0.3
V
Iout = -300µA
(BU9798GUW)
Parameter
Symbol
Limits
Unit
Conditions
MIN
TYP
MAX
Output voltage 1
Vreg1
4.25
4.5
4.70
V
4.5V setting (VLCD=5.5V, Ta=-30 ~ 75°C)
Output voltage 2
Vreg2
4.38
4.5
4.62
V
4.5V setting (VLCD=5.5V, Ta=25°C)
Load regulation
(**)
delta Vreg
-
-
0.3
V
Iout = -300µA
*
In case integrated regulator using, please satisfy condition that Vreg output lower than VLCD – 0.5V.
(**)
Load regulation: Vreg block load regulation only. Do not include other block ability.
Oscillation Frequency Characteristics (Ta=-30 ~ 75°C, VDD=1.8V ~ 3.6V, VLCD=3.3V ~ 5.5V, VSS=0)
Parameter
Symbol
Limits
Unit
Conditions
MIN
TYP
MAX
Frame frequency 1
fFR1
57.6
64
70.4
Hz VDD=3.3V, Ta=25°C, fFR=64Hz setting
Frame frequency 2
fFR2
51.2
64
73.0
Hz VDD=2.5 ~ 3.6V fFR=64Hz setting
Frame frequency 3
fFR3
45.0
-
64
Hz VDD=1.8 ~ 2.5V fFR=64Hz setting
CLKIN Input frequency
fCLK
-
2
4
MHz
MPU interface Characteristics (Ta=-30 ~ 75°C, VDD=1.8V ~ 3.6V, VLCD=3.3V ~ 5.5V, VSS=0)
Parameter
Symbol
Limits
Unit
Conditions
MIN
TYP
MAX
Input rise time
tr
-
-
50
ns
Input fall time
tf
-
-
50
ns
SCL cycle time
tSCYC
250
-
-
ns
“H” SCL pulse width
tSHW
50
-
-
ns
“L” SCL pulse width
tSLW
50
-
-
ns
SD setup time
tSDS
50
-
-
ns
SD hold time
tSDH
50
-
-
ns
CSB setup time
tCSS
50
-
-
ns
CSB hold time
tCSH
50
-
-
ns
“H” CSB pulse width
tCHW
50
-
-
ns
Fig.3 Serial Interface Timing
CSB
SCL
SD
tCSH
tSCYC
tSLW
tSHW
tSDS
tSDH
tf
tr
tCSS
tCHW


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